This is a great idea and a game! I love the art - especially the 3D room, really cute! I finished one run out of two. This is an inspiring mini roguelike/deckbuilding game!
I discovered one bug where you can get locked out of playing the game - during the tutorial in the first "End turn" screen you can use 1-6 keys and use the ability before it is shown in the next turn so it can't be used later.